vcl::comp::HasReferencesOfType Concept Reference

The HasReferencesOfType concept checks whether a component T stores references (pointers or indices) of a type (element) R. More...

Concept definition

template<typename T, typename R>
concept vcl::comp::HasReferencesOfType = 
    ComponentConcept<T> &&
    std::is_base_of<ReferencesComponentTriggerer<RemoveRef<R>>, RemoveRef<T>>::
        value

Detailed Description

The HasReferencesOfType concept checks whether a component T stores references (pointers or indices) of a type (element) R.

Each component that store pointers/indices of a type R, must:

• inherit from ReferencesComponentTriggerer<R> (automatically inherited by inheriting from Component class)
• provide the following protected member functions:

  • void updateReferences(const R* oldBase, std::size_t offset = 0);

    the function updates the stored R pointers/indices having the old base of the container (needed to update pointers) and the possible non-zero offset (used for append operations).

  • void updateReferences(const std::vector<uint>& newIndices);

    the function updates the stored R pointers/indices having, for each old element index, its new index in the container.

Template Parameters

T	the type to be evaluated.
R	the type of the references.